diff options
Diffstat (limited to 'usrp2/top/u2plus/u2plus_core.v')
| -rw-r--r-- | usrp2/top/u2plus/u2plus_core.v | 237 |
1 files changed, 24 insertions, 213 deletions
diff --git a/usrp2/top/u2plus/u2plus_core.v b/usrp2/top/u2plus/u2plus_core.v index 2b5ea4295..d49c461cb 100644 --- a/usrp2/top/u2plus/u2plus_core.v +++ b/usrp2/top/u2plus/u2plus_core.v @@ -268,27 +268,15 @@ module u2plus_core // ///////////////////////////////////////////////////////////////////////// // Dual Ported RAM -- D-Port is Slave #0 on main Wishbone - // I-port connects directly to processor and ram loader + // I-port connects directly to processor wire flush_icache; - ram_harvard #(.AWIDTH(15),.RAM_SIZE(RAM_SIZE),.ICWIDTH(7),.DCWIDTH(6)) - sys_ram(.wb_clk_i(wb_clk),.wb_rst_i(wb_rst), - - .ram_loader_adr_i(0), .ram_loader_dat_i(0), - .ram_loader_stb_i(0), .ram_loader_sel_i(0), - .ram_loader_we_i(0), - .ram_loader_done_i(1'b1), - - .if_adr(if_adr), - .if_data(if_dat), - + ram_harvard2 #(.AWIDTH(15),.RAM_SIZE(RAM_SIZE)) + sys_ram(.wb_clk_i(wb_clk),.wb_rst_i(wb_rst), + .if_adr(if_adr), .if_data(if_dat), .dwb_adr_i(s0_adr[14:0]), .dwb_dat_i(s0_dat_o), .dwb_dat_o(s0_dat_i), - .dwb_we_i(s0_we), .dwb_ack_o(s0_ack), .dwb_stb_i(s0_stb), .dwb_sel_i(s0_sel), - .flush_icache(flush_icache)); + .dwb_we_i(s0_we), .dwb_ack_o(s0_ack), .dwb_stb_i(s0_stb), .dwb_sel_i(s0_sel)); - setting_reg #(.my_addr(7)) sr_icache (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr), - .in(set_data),.out(),.changed(flush_icache)); - // ///////////////////////////////////////////////////////////////////////// // Buffer Pool, slave #1 wire rd0_ready_i, rd0_ready_o; @@ -486,14 +474,6 @@ module u2plus_core // Master Timer, Slave #9 // No longer used, replaced with simple_timer below - /* - wire [31:0] master_time; - timer timer - (.wb_clk_i(wb_clk),.rst_i(wb_rst), - .cyc_i(s9_cyc),.stb_i(s9_stb),.adr_i(s9_adr[4:2]), - .we_i(s9_we),.dat_i(s9_dat_o),.dat_o(s9_dat_i),.ack_o(s9_ack), - .sys_clk_i(dsp_clk),.master_time_i(master_time),.int_o(timer_int) ); - */ assign s9_ack = 0; // ///////////////////////////////////////////////////////////////////////// @@ -535,11 +515,26 @@ module u2plus_core assign sc_ack = 0; // ///////////////////////////////////////////////////////////////////////// - // SD Card Reader / Writer, Slave #13 + // ICAP for reprogramming the FPGA, Slave #13 (D) + + s3a_icap_wb s3a_icap_wb + (.clk(wb_clk), .reset(wb_rst), .cyc_i(sd_cyc), .stb_i(sd_stb), + .we_i(sd_we), .ack_o(sd_ack), .dat_i(sd_dat_o), .dat_o(sd_dat_i)); + + // ///////////////////////////////////////////////////////////////////////// + // Unused -- Slave #14 (E) + + assign se_ack = 0; + + // ///////////////////////////////////////////////////////////////////////// + // SPI for Flash -- Slave #15 (F) + spi_top flash_spi + (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.wb_adr_i(sf_adr[4:0]),.wb_dat_i(sf_dat_o), + .wb_dat_o(sf_dat_i),.wb_sel_i(sf_sel),.wb_we_i(sf_we),.wb_stb_i(sf_stb), + .wb_cyc_i(sf_cyc),.wb_ack_o(sf_ack),.wb_err_o(sf_err),.wb_int_o(spiflash_int), + .ss_pad_o(spiflash_cs), + .sclk_pad_o(spiflash_clk),.mosi_pad_o(spiflash_mosi),.miso_pad_i(spiflash_miso) ); - // Not used anymore - assign sd_ack = 0; - // ///////////////////////////////////////////////////////////////////////// // DSP RX wire [31:0] sample_rx, sample_tx; @@ -633,50 +628,6 @@ module u2plus_core .rx_occupied(ser_rx_occ),.rx_full(ser_rx_full),.rx_empty(ser_rx_empty), .serdes_link_up(serdes_link_up),.debug0(debug_serdes0), .debug1(debug_serdes1) ); - // /////////////////////////////////////////////////////////////////////////////////// - // External RAM Interface - - /* - localparam PAGE_SIZE = 10; // PAGE SIZE is in bytes, 10 = 1024 bytes - - wire [15:0] bus2ram, ram2bus; - wire [15:0] bridge_adr; - wire [1:0] bridge_sel; - wire bridge_stb, bridge_cyc, bridge_we, bridge_ack; - - wire [19:0] page; - wire [19:0] wb_ram_adr = {page[19:PAGE_SIZE],bridge_adr[PAGE_SIZE-1:0]}; - setting_reg #(.my_addr(6),.width(20)) sr_page (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr), - .in(set_data),.out(page),.changed()); - - wb_bridge_16_32 bridge - (.wb_clk(wb_clk),.wb_rst(wb_rst), - .A_cyc_i(se_cyc),.A_stb_i(se_stb),.A_we_i(se_we),.A_sel_i(se_sel), - .A_adr_i(se_adr),.A_dat_i(se_dat_o),.A_dat_o(se_dat_i),.A_ack_o(se_ack), - .B_cyc_o(bridge_cyc),.B_stb_o(bridge_stb),.B_we_o(bridge_we),.B_sel_o(bridge_sel), - .B_adr_o(bridge_adr),.B_dat_o(bus2ram),.B_dat_i(ram2bus),.B_ack_i(bridge_ack)); - - wb_zbt16_b wb_zbt16_b - (.clk(wb_clk),.rst(wb_rst), - .wb_adr_i(wb_ram_adr),.wb_dat_i(bus2ram),.wb_dat_o(ram2bus),.wb_sel_i(bridge_sel), - .wb_cyc_i(bridge_cyc),.wb_stb_i(bridge_stb),.wb_ack_o(bridge_ack),.wb_we_i(bridge_we), - .sram_clk(RAM_CLK),.sram_a(RAM_A),.sram_d(RAM_D[15:0]),.sram_we(RAM_WEn), - .sram_bw(),.sram_adv(RAM_LDn),.sram_ce(RAM_CENn),.sram_oe(RAM_OEn), - .sram_mode(),.sram_zz() ); - - assign RAM_CE1n = 0; - assign RAM_D[17:16] = 2'bzz; - */ - - // ///////////////////////////////////////////////////////////////////////// - // SPI for Flash -- Slave #2 - spi_top flash_spi - (.wb_clk_i(wb_clk),.wb_rst_i(wb_rst),.wb_adr_i(sf_adr[4:0]),.wb_dat_i(sf_dat_o), - .wb_dat_o(sf_dat_i),.wb_sel_i(sf_sel),.wb_we_i(sf_we),.wb_stb_i(sf_stb), - .wb_cyc_i(sf_cyc),.wb_ack_o(sf_ack),.wb_err_o(sf_err),.wb_int_o(spiflash_int), - .ss_pad_o(spiflash_cs), - .sclk_pad_o(spiflash_clk),.mosi_pad_o(spiflash_mosi),.miso_pad_i(spiflash_miso) ); - // ///////////////////////////////////////////////////////////////////////// // VITA Timing @@ -693,143 +644,3 @@ module u2plus_core assign debug_gpio_1 = 32'd0; endmodule // u2_core - -/* - // FIFO Level Debugging - reg [31:0] host_to_dsp_fifo,dsp_to_host_fifo,eth_mac_debug,serdes_to_dsp_fifo,dsp_to_serdes_fifo; - - always @(posedge dsp_clk) - serdes_to_dsp_fifo <= { {ser_rx_full,ser_rx_empty,ser_rx_occ[13:0]}, - {dsp_tx_full,dsp_tx_empty,dsp_tx_occ[13:0]} }; - - always @(posedge dsp_clk) - dsp_to_serdes_fifo <= { {ser_tx_full,ser_tx_empty,ser_tx_occ[13:0]}, - {dsp_rx_full,dsp_rx_empty,dsp_rx_occ[13:0]} }; - - always @(posedge dsp_clk) - host_to_dsp_fifo <= { {eth_rx_full,eth_rx_empty,eth_rx_occ[13:0]}, - {dsp_tx_full,dsp_tx_empty,dsp_tx_occ[13:0]} }; - - always @(posedge dsp_clk) - dsp_to_host_fifo <= { {eth_tx_full,eth_tx_empty,eth_tx_occ[13:0]}, - {dsp_rx_full,dsp_rx_empty,dsp_rx_occ[13:0]} }; - - always @(posedge dsp_clk) - eth_mac_debug <= { { 6'd0, GMII_TX_EN, GMII_RX_DV, debug_mac0[7:0]}, - {eth_rx_full2, eth_rx_empty2, eth_rx_occ2[13:0]} }; - - assign debug_clk[0] = GMII_RX_CLK; // wb_clk; - assign debug_clk[1] = dsp_clk; -*/ -/* - - wire mdio_cpy = MDIO; - assign debug = { { 1'b0, s6_stb, s6_ack, s6_we, s6_sel[3:0] }, - { s6_adr[15:8] }, - { s6_adr[7:0] }, - { 6'd0, mdio_cpy, MDC } }; -*/ -/* - assign debug = { { GMII_TXD }, - { 5'd0, GMII_TX_EN, GMII_TX_ER, GMII_GTX_CLK }, - { wr2_flags, rd2_flags }, - { 4'd0, wr2_ready_i, wr2_ready_o, rd2_ready_i, rd2_ready_o } }; - assign debug = { { GMII_RXD }, - { 5'd0, GMII_RX_DV, GMII_RX_ER, GMII_RX_CLK }, - { wr2_flags, rd2_flags }, - { GMII_TX_EN,3'd0, wr2_ready_i, wr2_ready_o, rd2_ready_i, rd2_ready_o } }; - */ - -// assign debug = debug_udp; - // assign debug = vrc_debug; -/* - assign debug_gpio_0 = { {pps_in, pps_int, 2'd0, vita_state}, - {2'd0, rx_dst_rdy, rx_src_rdy, rx_data[99:96]}, - {run_rx_d1, run_rx, strobe_rx, overrun, wr1_flags[3:0]} , - {wr1_ready_i, wr1_ready_o, rx1_src_rdy, rx1_dst_rdy, rx1_data[35:32]}}; -*/ -// assign debug_gpio_1 = {vita_time[63:32] }; - -/* - assign debug_gpio_1 = { { tx_f19_data[15:8] }, - { tx_f19_data[7:0] }, - { 3'd0, tx_f19_src_rdy, tx_f19_dst_rdy, tx_f19_data[18:16] }, - { 2'b0, rd2_ready_i, rd2_ready_o, rd2_flags } }; - */ - -// wire debug_mux; -// setting_reg #(.my_addr(5)) sr_debug (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr), -// .in(set_data),.out(debug_mux),.changed()); - -//assign debug = debug_mux ? host_to_dsp_fifo : dsp_to_host_fifo; -//assign debug = debug_mux ? serdes_to_dsp_fifo : dsp_to_serdes_fifo; - -//assign debug = {{strobe_rx,/*adc_ovf_a*/ 1'b0,adc_a}, -// {run_rx,/*adc_ovf_b*/ 1'b0,adc_b}}; - -//assign debug = debug_tx_dsp; -//assign debug = debug_serdes0; - -//assign debug_gpio_0 = 0; //debug_serdes0; -//assign debug_gpio_1 = 0; //debug_serdes1; - -// assign debug={{3'b0, wb_clk, wb_rst, dsp_rst, por, config_success}, -// {8'b0}, -// {3'b0,ram_loader_ack, ram_loader_stb, ram_loader_we,ram_loader_rst,ram_loader_done }, -// {cpld_start,cpld_mode,cpld_done,cpld_din,cpld_clk,cpld_detached,cpld_misc,cpld_init_b} }; - -//assign debug = {dac_a,dac_b}; - -/* - assign debug = {{ram_loader_done, takeover, 6'd0}, - {1'b0, cpld_start_int, cpld_mode_int, cpld_done_int, sd_clk, sd_csn, sd_miso, sd_mosi}, - {8'd0}, - {cpld_start, cpld_mode, cpld_done, cpld_din, cpld_misc, cpld_detached, cpld_clk, cpld_init_b}}; */ - -/*assign debug = host_to_dsp_fifo; - assign debug_gpio_0 = eth_mac_debug; - assign debug_gpio_1 = 0; - */ -// Assign various commonly used debug buses. -/* - wire [31:0] debug_rx_1 = {uart_tx_o,GMII_TX_EN,strobe_rx,overrun,proc_int,buffer_int,timer_int,GMII_RX_DV, - irq[7:0], - GMII_RXD, - GMII_TXD}; - - wire [31:0] debug_rx_2 = { 5'd0, s8_we, s8_stb, s8_ack, debug_rx[23:0] }; - - wire [31:0] debug_time = {uart_tx_o, 7'b0, - irq[7:0], - 6'b0, GMII_RX_DV, GMII_TX_EN, - 4'b0, exp_pps_in, exp_pps_out, pps_in, pps_int}; - - wire [31:0] debug_irq = {uart_tx_o, iwb_adr, iwb_ack, - irq[7:0], - proc_int, 7'b0 }; - - wire [31:0] debug_eth = - {{uart_tx_o,proc_int,underrun,buffer_int,wr2_ready,wr2_error,wr2_done,wr2_write}, - {8'd0}, - {8'd0}, - {GMII_TX_EN,GMII_RX_DV,Rx_mac_empty,Rx_mac_rd,Rx_mac_err,Rx_mac_sop,Rx_mac_eop,wr2_full} }; - - assign debug_serdes0 = { { rd0_dat[7:0] }, - { ser_tx_clk, ser_tkmsb, ser_tklsb, rd0_sop, rd0_eop, rd0_read, rd0_error, rd0_done }, - { ser_t[15:8] }, - { ser_t[7:0] } }; - - assign debug_serdes1 = { {1'b0,proc_int,underrun,buffer_int,wr0_ready,wr0_error,wr0_done,wr0_write}, - { 1'b0, ser_rx_clk, ser_rkmsb, ser_rklsb, ser_enable, ser_prbsen, ser_loopen, ser_rx_en }, - { ser_r[15:8] }, - { ser_r[7:0] } }; - - assign debug_gpio_1 = {uart_tx_o,7'd0, - 3'd0,rd1_sop,rd1_eop,rd1_read,rd1_done,rd1_error, - debug_txc[15:0]}; - assign debug_gpio_1 = debug_rx; - assign debug_gpio_1 = debug_serdes1; - assign debug_gpio_1 = debug_eth; - - */ - |